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在大比例尺遥感影像解译的基础上,利用野外调查测量、探槽开挖及热释光测年的方法,对那拉提断裂进行了研究。那拉提断裂是一条晚第四纪以来仍有较强的活动大型逆冲左旋走滑断裂带,断裂带宽度巨大,由多条倾向不同的次级断裂组成,分布在南北宽数千米的范围内。断裂断错了那拉提山前晚第四纪以来的各级地貌面,主要表现为断层陡坎、冲沟水系和地貌面的左旋位移,根据实测陡坎高度及对应地貌面的定年,获得断裂所造成的南北向地壳缩短速率在0.7~1.0 mm/a左右,这表明天山内部同样存在明显的构造变形。
Based on the interpretation of large-scale remote sensing images, the Nalati fracture was studied by field surveying, trench excavation and thermoluminescence dating. The Nalati fault is a large-scale thrust left-slip strike-slip fault still occurring since the late Quaternary. The fault zone is huge in width and consists of several secondary faults with different tendencies. They are distributed in kilometers north to south Range. Faults ruptured the Nalati Mountain since the Quaternary from the previous night to all levels of topography, mainly for the fault scarp, gutter and facies surface left-handed displacement, according to the measured height of the scarp and the corresponding geomorphological dating, access The crustal shortening rate caused by the fault is about 0.7-1.0 mm / a, indicating that there is also obvious structural deformation in the Tianshan Mountains.